(function ($) {
    // 当domReady的时候开始初始化
    $(function () {
    	if($("#uploader").length > 0) {
    	    //元素存在时执行的代码
    		var uploader = new Webuploader("#uploader");
    	}
    });
    var filePathArry = [],fileNameArry = [];
   	function Webuploader(container,options){
   		console.log(container)
   		//上传容器
    	var $wrap = $(container);
   		//初始配置
   		var opts = {
   			auto:true,
            fileVal:'file', //设置文件上传域的name。
            chunked: false,
            chunkSize: 512 * 1024,
            server: '/ftp/ftpFileUpload',
		    isShowUploadBtn:true,
            // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
            disableGlobalDnd: false,
            duplicate :true,
            fileNumLimit: 10,
            fileSizeLimit: 200 * 1024 * 1024, // 200 M
            fileSingleSizeLimit: 50 * 1024 * 1024    // 50 M
   		}
   		$.extend(opts,options?options:{});
   		
   		// 文件容器
		var $html = '<div class="updata-file">'+ 
						'<div class="filelist"><div class="update-button filePicker"></div></div>'+
		    		'</div>';
		// 初始化容器标签
   		$wrap.append($html);
   		// 文件容器
        var $queue = $wrap.find('.filelist'),
        // 状态栏，包括进度和控制按钮
        $statusBar = $wrap.find('.statusBar'),
        // 上传按钮
        $upload = $wrap.find('.filePicker'),
        // 没选择文件之前的内容。
        $placeHolder = $wrap.find('.placeholder'),
        $progress = $statusBar.find('.progress').hide(),
        // 添加的文件数量
        fileCount = 0,
        // 添加的文件总大小
        fileSize = 0,
        // 优化retina, 在retina下这个值是2
        ratio = window.devicePixelRatio || 1,
        // 缩略图大小
        thumbnailWidth = 110 * ratio,
        thumbnailHeight = 110 * ratio,
        // 可能有pedding, ready, uploading, confirm, done.
        state = 'pedding',
        // 所有文件的进度信息，key为file id
        percentages = {},
        // 判断浏览器是否支持图片的base64
        isSupportBase64 = (function () {
            var data = new Image();
            var support = true;
            data.onload = data.onerror = function () {
                if (this.width != 1 || this.height != 1) {
                    support = false;
                }
            }
            data.src = "";
            return support;
        })(),
        // 检测是否已经安装flash，检测flash的版本
        flashVersion = (function () {
            var version;

            try {
                version = navigator.plugins[ 'Shockwave Flash' ];
                version = version.description;
            } catch (ex) {
                try {
                    version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash')
                            .GetVariable('$version');
                } catch (ex2) {
                    version = '0.0';
                }
            }
            version = version.match(/\d+/g);
            return parseFloat(version[ 0 ] + '.' + version[ 1 ], 10);
        })(),
        supportTransition = (function () {
            var s = document.createElement('p').style,
                    r = 'transition' in s ||
                    'WebkitTransition' in s ||
                    'MozTransition' in s ||
                    'msTransition' in s ||
                    'OTransition' in s;
            s = null;
            return r;
        })(),
        // WebUploader实例
        
        uploader;
        if (!WebUploader.Uploader.support('flash') && WebUploader.browser.ie) {

            // flash 安装了但是版本过低。
            if (flashVersion) {
                (function (container) {
                    window['expressinstallcallback'] = function (state) {
                        switch (state) {
                            case 'Download.Cancelled':
                                alert('您取消了更新！')
                                break;

                            case 'Download.Failed':
                                alert('安装失败')
                                break;

                            default:
                                alert('安装已成功，请刷新！');
                                break;
                        }
                        delete window['expressinstallcallback'];
                    };

                    var swf = './expressInstall.swf';
                    // insert flash object
                    var html = '<object type="application/' +
                            'x-shockwave-flash" data="' + swf + '" ';

                    if (WebUploader.browser.ie) {
                        html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
                    }

                    html += 'width="100%" height="100%" style="outline:0">' +
                            '<param name="movie" value="' + swf + '" />' +
                            '<param name="wmode" value="transparent" />' +
                            '<param name="allowscriptaccess" value="always" />' +
                            '</object>';

                    container.html(html);
					
                })($wrap);

                // 压根就没有安转。
            } else {
                $wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');
            }

            return;
        } else if (!WebUploader.Uploader.support()) {
            alert('Web Uploader 不支持您的浏览器！');
            return;
        }
        
        
        
		// 实例化
        //uploader = WebUploader.create(opts);
        uploader = WebUploader.create({
            pick: $wrap.find(".filePicker"),
            formData: opts.FormData,
			fileVal: opts.fileVal,
            dnd: $wrap,
            paste: $wrap,
            swf: 'js/Uploader.swf',
            chunked: opts.chunked,
            chunkSize: opts.chunkSize,
            server: opts.server,
            accept:opts.accept,
            // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
            disableGlobalDnd: opts.disableGlobalDnd,
            duplicate: opts.duplicate,
            fileNumLimit: opts.fileNumLimit,//验证文件总数量
            fileSizeLimit: opts.fileSizeLimit,//验证文件总大小
            fileSingleSizeLimit: opts.fileSingleSizeLimit//验证单个文件小大
        });


        uploader.on('ready', function () {
            window.uploader = uploader;
        });
        

        // 当有文件添加进来时执行，负责view的创建
        function addFile(file) {
			var $li = $('<div class="file-box" id="' + file.id + '">'+
			    			'<a class="file-name">' + file.name + '</a>'+
	    				'</div>');
					//$btns = $('<span class="img-wh"></span>').appendTo($li);
                    //$prgress = $li.find('p.progress span'),
                    $wrap = $li.find('a.file-name');
                    showError = function (code) {
                        switch (code) {
                            case 'exceed_size':
                                text = '文件大小超出';
                                break;

                            case 'interrupt':
                                text = '上传暂停';
                                break;

                            default:
                                text = '上传失败，请重试';
                                break;
                        }
                    };

            if (file.getStatus() === 'invalid') {
                showError(file.statusText);
            } else {
                // @todo lazyload
                //$wrap.text('预览中');
                uploader.makeThumb(file, function (error, src) {
                    var img;

                    if (error) {
                        //$wrap.text('不能预览');
                        return;
                    }

                    if (isSupportBase64) {
                        img = $('<img src="' + src + '">');
                        //$wrap.empty().append(img);
                    } else {
                        $.ajax('../preview.php', {
                            method: 'POST',
                            data: src,
                            dataType: 'json'
                        }).done(function (response) {
                            if (response.result) {
                                img = $('<img src="' + response.result + '">');
                                //$wrap.empty().append(img);
                            } else {
                                //$wrap.text("预览出错");
                            }
                        });
                    }
                }, thumbnailWidth, thumbnailHeight);

                percentages[ file.id ] = [file.size, 0];
                file.rotation = 0;
            }

            file.on('statuschange', function (cur, prev) {
            	console.log(cur)
            	console.log(prev)
                if (prev === 'progress') {
                    //$prgress.hide().width(0);
                } else if (prev === 'queued') {
//                  $li.off('mouseenter mouseleave');
//                  $btns.remove();
                }
                // 失败
                if (cur === 'error' || cur === 'invalid') { 
                	$li.remove(); 
                    showError(file.statusText);
                    $("body").find('#mask').addClass('mask-hidden');
                	//$li.children('.success').remove(); 
                    //percentages[ file.id ][ 1 ] = 1;
                } else if (cur === 'interrupt') {
                    showError('interrupt');
                } else if (cur === 'queued') {
                    percentages[ file.id ][ 1 ] = 0;
                } else if (cur === 'progress') {
                    //$prgress.css('display', 'block');
                } else if (cur === 'complete') { 
                	$li.append('<span class="success"></span>');
                }

                $li.removeClass('state-' + prev).addClass('state-' + cur);
            });
            
            //移除文件
            /*$btns.on('click', function () {
            	uploader.removeFile(file);
            });*/

            $li.appendTo($queue);
        }

        // 负责view的销毁
        function removeFile(file) {
        	console.log(file)
            var $li = $('#' + file.id);

            delete percentages[ file.id ];
            updateTotalProgress();
        }

        function updateTotalProgress() {
            var loaded = 0,
                total = 0,
                percent;
            $.each(percentages, function (k, v) {
                total += v[ 0 ];
                loaded += v[ 0 ] * v[ 1 ];
            });

            percent = total ? loaded / total : 0;
            updateStatus();
        }
		
		//更新状态提示
        function updateStatus() {
            var text = '', stats;
            if (state === 'ready') {
                text = '选中' + fileCount + '个文件，共' +
                        WebUploader.formatSize(fileSize) + '。';
            } else if (state === 'confirm') {
                stats = uploader.getStats();
                if (stats.uploadFailNum) {
                    text = '已成功上传' + stats.successNum + '个文件至XX文件夹，' +
                            stats.uploadFailNum + '个文件上传失败，<a class="retry" href="#">重新上传</a>失败文件或<a class="ignore" href="#">忽略</a>'
                }

            } else {
                stats = uploader.getStats();
                text = '共' + fileCount + '个（' +
                        WebUploader.formatSize(fileSize) +
                        '），已上传' + stats.successNum + '个';

                if (stats.uploadFailNum) {
                    text += '，失败' + stats.uploadFailNum + '个';
                }
            }
            console.log(text)
        }
//设置状态
        function setState(val) {
            var file, stats;
            if (val === state) {
                return;
            }
            $upload.removeClass('state-' + state);
            $upload.addClass('state-' + val);
            state = val;
            switch (state) {
                case 'pedding':
                    $placeHolder.removeClass('element-invisible');
                    //$queue.hide();
                    uploader.upload();
                    $statusBar.addClass('element-invisible');
//                    uploader.refresh();
                    break;

                case 'ready':
                    $placeHolder.addClass('element-invisible');
                    uploader.upload();
                    $queue.show();
                    $statusBar.removeClass('element-invisible');
                    uploader.refresh();
                    break;

                case 'uploading':
                    $progress.show();
                    break;

                case 'paused':
                    $progress.show();
                    break;

                case 'confirm':
                    $progress.hide();
                    stats = uploader.getStats();
                    if (stats.successNum && !stats.uploadFailNum) {
                        setState('finish');
                        return;
                    }
                    break;
                case 'finish':
                    stats = uploader.getStats();
                    console.log(stats)
                    if (stats.successNum) {
                        //alert('上传成功');
                    } else {
                        // 没有成功的图片，重设
                        state = 'done';
                        location.reload();
                    }
                    break;
            }

            updateStatus();
        }
//       上传中
        uploader.onUploadProgress = function (file, percentage) {
            var $li = $('#' + file.id),
			$percent = $li.find('.progress span');

            $percent.css('width', percentage * 100 + '%');
            percentages[ file.id ][ 1 ] = percentage;
            loading("上传中");
//            添加遮罩
            //$("body").find('#mask').removeClass('mask-hidden');
            updateTotalProgress();
        };

        uploader.onFileQueued = function (file) {
			$wrap.find(".placeholder").hide();
            fileCount++;
            fileSize += file.size;

            if (fileCount === 1) {
                $placeHolder.addClass('element-invisible');
                $statusBar.show();
            }

            addFile(file);
            setState('ready');
            updateTotalProgress();
        };

        uploader.onFileDequeued = function (file) {
            fileCount--;
            fileSize -= file.size;

            if (!fileCount) {
                setState('pedding');
                $wrap.find(".placeholder").show();
                $statusBar.hide();
            }

            removeFile(file);
            updateTotalProgress();

        };

        uploader.on('all', function (type) {
            var stats;
            switch (type) {
                case 'uploadFinished':
                    setState('confirm');
                    break;

                case 'startUpload':
                    setState('uploading');
                    break;

                case 'stopUpload':
                    setState('paused');
                    break;

            }
        });

        uploader.onError = function (code) {
            switch(code){
            	case 'F_DUPLICATE':
            		break;
            	default:
            		alert('Eroor: ' + code);
            		break;
            	
            }
            
        };
        
//        文件上传成功
		uploader.onUploadSuccess = function(file,response){
			filePathArry.push(response.filepath);
//        	fileNameArry.push(response.fileName);
//        	var strUrl = filePathArry.toString();
//        	var strName = fileNameArry.toString(); 
            if(response.status==1){
//	        	$wrap.parent().find("#file_name").val(strName);
//	        	$wrap.parent().find("#file_url").val(strUrl);
            	view.setFile_url(response.filepath);
                view.setFile_name(response.fileName);
//   	         	移除遮罩
   	         unmask();
   	         //$("body").find('#mask').addClass('mask-hidden');
            }
		}

        /*$upload.on('click', function () {
       
            if ($(this).hasClass('disabled')) {
                return false;
            }

            if (state === 'ready') {
                uploader.upload();
            } else if (state === 'paused') {
                uploader.upload();
            } else if (state === 'uploading') {
                uploader.stop();
            }
        });


        $upload.addClass('state-' + state);*/
        updateTotalProgress();
		
    	return uploader;
    }
})(jQuery);
//下载文件
function downFile(url,name){
	window.location.href = "/ftp/downFile?path="+url+"&fileName="+name; 
}